/Engine/Plugins/Online/OnlineSubsystem/Source/Public/OnlineAsyncTaskManager.h
Add a new item to the out queue that will call InCallable on the game thread. Very useful when passing in lambdas as parameters, since this function will automatically deduce the template parameter type for FOnlineAsyncItemGenericCallable.
template<class CallableType> void AddGenericToOutQueue ( const CallableType & InCallable )